RideScout

Trek FX+ 2 vs Urtopia Carbon Atom

Two commuter e-bikes at $2,299.99–$2,499, every published spec lined up. Nothing here is estimated: a figure the manufacturer does not publish is shown as “—”.

vs

Where they differ

  • The Carbon Atom claims 43 more miles of range.
  • The Carbon Atom carries 315 Wh more battery.
  • The Carbon Atom makes 30 Nm more torque.
  • The Carbon Atom assists 8 mph faster.
  • The FX+ 2 is 5.9 lb lighter.
  • The Carbon Atom carries 30 lb more total load.
  • The FX+ 2 costs $199 less.
  • The FX+ 2 ships as class 2; the Carbon Atom ships as class 2–3.

Every spec, side by side

FX+ 2Carbon Atom
Headline
Price$2,299.99$2,499
CategoryCommuterCommuter
Price per Wh$4.42 per Wh$2.99 per Wh
Model year20262026
Motor
Torque60 Nm90 Nm
Motor power500 W750 W
Peak power—1250 W
DriveRear hubRear hub
Motor make—Urtopia
SensorTorqueTorque
Battery & range
Battery520 Wh835 Wh
Voltage—48V
Capacity—17.4 Ah
Cells—LG
Removable batteryYesYes
Range (claim)50 mi93 mi
Range as statedUp to 50 miUp to 93 mi (180 lb rider, ECO, flat, no throttle)
Est. real range33 mi42 mi
Estimate assumes16 Wh per mile20 Wh per mile
Weight & capacity
Weight55.78 lb61.7 lb
Max load300 lb330 lb
Class & speed
Ships asClass 2: throttle, assist to 20 mphClass 2: throttle, assist to 20 mph
Unlocks to—Class 3
ClassClass 2Class 2–3
ThrottleYesYes
Top assisted speed20 mph28 mph
Build
Gears8-speed—
DrivetrainShimano ESSA U2000 (11-45T)—
BrakesHydraulic discHydraulic disc
Front rotor180 mm—
Rear rotor180 mm—
SuspensionHardtail (front only)Hardtail (front only)
Fork travel63 mm80 mm
Rear travelNoneNone
Front suspensionYesYes
Suspension seatpost50 mm30 mm
Tires650 x 50mm (27.5 x 2.0) Bontrager GR0 Comp26 x 2.4
DisplayLCD display3.5" LCD
FrameAlpha Gold AluminumToray carbon fibre
SizesS-XLOne size
Step-through optionNoNo
Included
LightsYesYes
FendersYes—
RackYes—
KickstandYes—
SafetyUL 2849UL 2271
Safety certificationUL 2849: full systemUL 2271: battery only
As the maker states itAll e-systems that Trek currently uses have been tested to UL 2849 and EN 15194 as appropriate, and certified to UL 2849Battery UL 2271 Certified (Classic also EN 50604)
Warranty—2 yr
Warranty terms—2-Year Warranty (brand policy)

Specs transcribed from www.trekbikes.com on 09/30/2026 and newurtopia.com on 09/20/2026. Manufacturers revise specs without notice: confirm before buying.

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